Strongly entangled light from planar microcavities
arXiv:1207.4899 · doi:10.1103/PhysRevA.86.052313
Abstract
The emission of entangled light from planar semiconductor microcavities is studied and the entanglement properties are analyzed and quantified. Phase-matching of the intra-cavity scattering dynamics for multiple pump beams or pulses, together with the coupling to external radiation, leads to the emission of a manifold of entangled photon pairs. A decomposition of the emitted photons into two parties leads to a strong entanglement of the resulting bipartite system. For the quantification of the entanglement, the Schmidt number of the system is determined by the construction of Schmidt number witnesses. It is analyzed to which extend the resources of the originally strongly entangled light field are diminished by dephasing in propagation channels.
9 pages, 5 figures, extended version
References in corpus (6)
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- Determination of the Schmidt number
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Cited by in corpus (14)
- Multipartite Entanglement Witnesses
- Qubits based on Polariton Rabi Oscillators
- Permanent Rabi oscillations in coupled exciton-photon systems with PT-symmetry
- Witnessing the degree of nonclassicality of light
- Entanglement in macroscopic systems
- Multipartite entangled light from driven microcavities
- Quantum correlations in composite systems
- Witnessing random unitary and projective quantum channels: Complementarity between separable and maximally entangled states
- Entanglement generation in microcavity polariton devices
- Enhanced squeezing by absorption
- Entangled light from driven dissipative microcavities
- Superfluorescence spectra of excitons in quantum wells
- Generation, dynamical buildup and detection of bi- and mulipartite entangled states in cavity systems
- Cavity-QED of a leaky planar resonator coupled to an atom and an input single-photon pulse